2007-26-11: High-pressure oxygen cylinder

2007-26-11 Intertechnique Zodiac Aircraft Systems: Amendment 39- 15313. Docket No. FAA-2007-0374; Directorate Identifier 2007-SW-02- AD. Effective Date (a) This airworthiness directive (AD) becomes effective January 28, 2008. Other Affected ADs (b) None. Applicability (c) This AD applies to Intertechnique (F5341), aluminum alloy AA5283, oxygen cylinders manufactured by Societe Metallurgique de Gerzat SAS with GLD series, GLF series, PC2300 or SLF300 part numbers, installed in any aircraft certificated in any category. These oxygen reserve cylinders are installed on but not limited to Model Airbus 300 series; Pilatus P-6; Dassault Aviation Mystere- Falcon 20, Falcon 50, Falcon 200, and Falcon 900 airplanes; and Eurocopter AS350 and Eurocopter SA315 helicopters. Reason (d) The mandatory continued airworthiness information (MCAI) states: This Airworthiness Directive (AD) is issued following information concerning the risk of high-pressure oxygencylinder tearing with sudden emptying. These cylinders are used for missions at high altitudes or to ensure respiratory air for passengers feeling sick. It has been demonstrated that the material characteristics of the Aluminum Alloy 5283 (AA5283) from which the cylinders are manufactured deteriorate in the course of time and may possibly lead these oxygen cylinders to tear and abruptly vent aboard an aircraft. Actions and Compliance (e) Unless already done, remove any affected oxygen reserve cylinder before further flight. Differences Between the FAA AD and the MCAI (f) This AD differs from the MCAI as follows: (1) The MCAI requires removal of the affected oxygen cylinders at specific time intervals; however, this AD requires removal before further flight. (2) The MCAI requires certain procedures to be used for emptying the cylinders as well as certain action for cylinders held as spares. These actions are beyond the scope of the action needed to correct this unsafe condition and are not included in this AD. Subject (g) Air Transport Association of America (ATA) Code 3530: Portable Oxygen System. Other Information (h) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Safety Management Group, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Uday Garadi, Aviation Safety Engineer, Regulations and Guidance Group, Fort Worth, Texas 76193-0110, telephone (817) 222-5123, fax (817) 222-5961. (2) Airworthy Product: Use only FAA-approved corrective actions. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent) if the State of Design has an appropriate bilateral agreement with the United States. You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120- 0056. Related Information (i) Mandatory Continuing Airworthiness Information (MCAI) EASA Airworthiness Directive No. 2006-0286R1, dated March 22, 2007; Intertechnique Service Bulletin No. GLD/GLF-35-150, dated September 20, 2006; and Eurocopter Alert Service Bulletin Nos. 05.00.54 for the Model AS350B3 and 05.42 for the Model SA315B, both dated August 16, 2006, contain related information.